Cable-driven actuation system for robotic surgical tool attachment

ABSTRACT

A surgical end effector assembly is disclosed. The surgical end effector assembly comprises a shaft, an end effector comprising a first jaw and a second jaw movable relative to the first jaw, and an articulation joint attaching the end effector to the shaft, wherein the articulation joint defines an articulation axis about which said end effector is articulatable relative to the shaft. The articulation joint comprises a first rotary drive member rotatable about the articulation axis and a second rotary drive member rotatable about the articulation axis, wherein the first rotary drive member and the second rotary drive member are rotatable in the same direction to articulate the end effector about the articulation axis. The surgical end effector assembly further comprises a jaw drive output cooperatively driven by the first rotary drive member and the second rotary drive member configured to clamp and unclamp tissue with the second jaw.

BACKGROUND

The present disclosure relates to surgical instruments and surgical robots, including robotic tool attachments for use with a surgical robot.

BRIEF DESCRIPTION OF THE FIGURES

The various aspects described herein, both as to organization and methods of operation, together with further objects and advantages thereof, may best be understood by reference to the following description, taken in conjunction with the accompanying drawings as follows.

FIG. 1 is a perspective view of a robotic controller, in accordance with at least one aspect of the present disclosure.

FIG. 2 is a perspective view of a robotic surgical arm cart/manipulator of a robotic system operably supporting a plurality of surgical tools, in accordance with at least one aspect of the present disclosure.

FIG. 3 is a side view of the robotic surgical arm cart/manipulator depicted in FIG. 2 , in accordance with at least one aspect of the present disclosure.

FIG. 4 is a perspective view of a cart structure with positioning linkages for operably supporting robotic manipulators that may be used with surgical tools, in accordance with at least one aspect of the present disclosure.

FIG. 5 is a perspective view of a surgical tool and a surgical end effector, in accordance with at least one aspect of the present disclosure.

FIG. 6 is a perspective view of another surgical tool, in accordance with at least one aspect of the present disclosure.

FIG. 7 is another perspective view of the surgical tool of FIG. 6 , in accordance with at least one aspect of the present disclosure.

FIG. 8 is a cross-sectional perspective view of the surgical tool of FIG. 6 , in accordance with at least one aspect of the present disclosure.

FIG. 9 is a perspective view of a robotic surgical tool attachment comprising a shaft assembly, an articulation region, and an end effector, in accordance with at least one aspect of the present disclosure.

FIG. 10 is a partially exploded view of the robotic surgical tool attachment of FIG. 9 , in accordance with at least one aspect of the present disclosure.

FIG. 11 is a partially exploded view of the robotic surgical tool attachment of FIG. 9 , wherein the robotic surgical tool attachment comprises a cable-driven actuation system configured to articulate the end effector and clamp and unclamp tissue with the end effector, in accordance with at least one aspect of the present disclosure.

FIG. 12 is a detailed view of a portion of the cable-driven actuation system of FIG. 11 , in accordance with at least one aspect of the present disclosure.

FIG. 13 is a perspective view of various components of the cable-driven actuation system and a firing drive system of the robotic surgical tool attachment of FIG. 9 , in accordance with at least one aspect of the present disclosure.

FIG. 14 is a perspective view of various components of the cable-driven actuation system as well as the firing drive system of the robotic surgical tool attachment of FIG. 9 , in accordance with at least one aspect of the present disclosure.

FIG. 15 is a perspective view of a driven gear and drive teeth of the cable-driven actuation system of FIG. 11 configured to clamp and unclamp tissue with the end effector, in accordance with at least one aspect of the present disclosure.

FIG. 16 is a perspective view of the robotic surgical tool attachment of FIG. 9 , wherein the end effector is articulated about a first articulation axis, in accordance with at least one aspect of the present disclosure.

FIG. 17 is a perspective view of the robotic surgical tool attachment of FIG. 9 , wherein the end effector is articulated about the first articulation axis and a second articulation axis, in accordance with at least one aspect of the present disclosure.

FIG. 18 is a partial cross-sectional view of the robotic surgical tool attachment of FIG. 9 , wherein the end effector is illustrated in an open configuration, in accordance with at least one aspect of the present disclosure.

FIG. 19 is a partial cross-sectional view of the robotic surgical tool attachment of FIG. 9 , wherein the end effector is illustrated in a closed configuration, in accordance with at least one aspect of the present disclosure.

FIG. 20 is a partial cross-sectional view of the robotic surgical tool attachment of FIG. 9 , wherein the end effector is illustrated in a closed and partially fired configuration, in accordance with at least one aspect of the present disclosure.

FIG. 21 is an elevational view of the cable-driven actuation system of FIG. 11 , in accordance with at least one aspect of the present disclosure.

Corresponding reference characters indicate corresponding parts throughout the several views. The exemplifications set out herein illustrate various embodiments of the invention, in one form, and such exemplifications are not to be construed as limiting the scope of the invention in any manner.

DESCRIPTION

Applicant of the present application owns the following U.S. Pat. Application that was filed on Jun. 29, 2021, and which is herein incorporated by reference in its entirety:

U.S. Patent Application Serial No. 17/361,574, entitled METHOD OF USING MULTIPLE RFID CHIPS WITH A SURGICAL ASSEMBLY.

Applicant of the present application owns the following U.S. Provisional Patent Application that was filed on May 28, 2021, and which is herein incorporated by reference in its entirety:

U.S. Provisional Patent Application Serial No. 63/194,621, entitled SURGICAL INSTRUMENT.

Applicant of the present application owns the following U.S. Patent Applications that were filed on Feb. 26, 2021, and which are each herein incorporated by reference in their respective entireties:

-   U.S. Pat. Application Serial No. 17/186,269, entitled METHOD OF     POWERING AND COMMUNICATING WITH A STAPLE CARTRIDGE; -   U.S. Pat. Application Serial No. 17/186,273, entitled METHOD OF     POWERING AND COMMUNICATING WITH A STAPLE CARTRIDGE; -   U.S. Pat. Application Serial No. 17/186,276, entitled ADJUSTABLE     COMMUNICATION BASED ON AVAILABLE BANDWIDTH AND POWER CAPACITY; -   U.S. Pat. Application Serial No. 17/186,283, entitled ADJUSTMENT TO     TRANSFER PARAMETERS TO IMPROVE AVAILABLE POWER; -   U.S. Pat. Application Serial No. 17/186,345, entitled MONITORING OF     MANUFACTURING LIFE-CYCLE; -   U.S. Pat. Application Serial No. 17/186,350, entitled MONITORING OF     MULTIPLE SENSORS OVER TIME TO DETECT MOVING CHARACTERISTICS OF     TISSUE; -   U.S. Pat. Application Serial No. 17/186,353, entitled MONITORING OF     INTERNAL SYSTEMS TO DETECT AND TRACK CARTRIDGE MOTION STATUS; -   U.S. Pat. Application Serial No. 17/186,357, entitled DISTAL     COMMUNICATION ARRAY TO TUNE FREQUENCY OF RF SYSTEMS; -   U.S. Pat. Application Serial No. 17/186,364, entitled STAPLE     CARTRIDGE COMPRISING A SENSOR ARRAY; -   U.S. Pat. Application Serial No. 17/186,373, entitled STAPLE     CARTRIDGE COMPRISING A SENSING ARRAY AND A TEMPERATURE CONTROL     SYSTEM; -   U.S. Pat. Application Serial No. 17/186,378, entitled STAPLE     CARTRIDGE COMPRISING AN INFORMATION ACCESS CONTROL SYSTEM; -   U.S. Pat. Application Serial No. 17/186,407, entitled STAPLE     CARTRIDGE COMPRISING A POWER MANAGEMENT CIRCUIT; -   U.S. Pat. Application Serial No. 17/186,421, entitled STAPLING     INSTRUMENT COMPRISING A SEPARATE POWER ANTENNA AND A DATA TRANSFER     ANTENNA; -   U.S. Pat. Application Serial No. 17/186,438, entitled SURGICAL     INSTRUMENT SYSTEM COMPRISING A POWER TRANSFER COIL; and -   U.S. Pat. Application Serial No. 17/186,451, entitled STAPLING     INSTRUMENT COMPRISING A SIGNAL ANTENNA.

Applicant of the present application owns the following U.S. Pat. Applications that were filed on Dec. 30, 2020, and which are each herein incorporated by reference in their respective entireties:

-   U.S. Pat. Application Serial No. 17/137,829, entitled SURGICAL TOOL     WITH TOOL-BASED TRANSLATION AND LOCK FOR THE SAME; and -   U.S. Pat. Application Serial No. 17/137,852, entitled TORQUE-BASED     TRANSITION BETWEEN OPERATING GEARS.

Applicant of the present application owns the following U.S. Pat. Application that was filed on Jun. 10, 2020, and which is herein incorporated by reference in its entirety:

- U.S. Pat. Application Serial No. 16/897,868, entitled ROBOTICALLY-CONTROLLED END EFFECTOR, now U.S. Pat. Application Publication No. 2020/0367886.

Applicant of the present application owns the following U.S. Pat. Application that was filed on Apr. 3, 2020, and which is herein incorporated by reference in its entirety:

U.S. Pat. Application Serial No. 16/839,632, entitled FASTENER CARTRIDGES INCLUDING EXTENSIONS HAVING DIFFERENT CONFIGURATIONS, now U.S. Pat. Application Publication No. 2020/0237371.

Applicant of the present application owns the following U.S. Pat. Application that was filed on Dec. 31, 2019, and which is herein incorporated by reference in its entirety:

U.S. Pat. Application Serial No. 16/731,281, entitled SURGICAL STAPLER HAVING DOWNSTREAM CURRENT-BASED MOTOR CONTROL, now U.S. Pat. Application Publication No. 2020/0146676.

Applicant of the present application owns the following U.S. Provisional Pat. Application that was filed on Dec. 30, 2019, and which is herein incorporated by reference in its entirety:

U.S. Provisional Pat. Application Serial No. 62/955,306, entitled SURGICAL INSTRUMENT SYSTEMS.

Applicant of the present application owns the following U.S. Pat. Applications that were filed on Dec. 19, 2019, and which are each herein incorporated by reference in their respective entireties:

-   U.S. Pat. Application Serial No. 16/720,766, entitled METHOD FOR     OPERATING A SURGICAL STAPLING INSTRUMENT, now U.S. Pat. Application     Publication No. 2021/0186495; -   U.S. Pat. Application Serial No. 16/720,776, entitled SURGICAL     INSTRUMENT COMPRISING A POWERED ARTICULATION SYSTEM, now U.S. Pat.     Application Publication No. 2021/0186503; -   U.S. Pat. Application Serial No. 16/720,781, entitled MOTOR DRIVEN     SURGICAL INSTRUMENT, now U.S. Pat. Application Publication No.     2021/0186504; -   U.S. Pat. Application Serial No. 16/720,789, entitled STAPLING     INSTRUMENT COMPRISING INDEPENDENT JAW CLOSING AND STAPLE FIRING     SYSTEMS, now U.S. Pat. Application Publication No. 2021/0186506; -   U.S. Pat. Application Serial No. 16/720,706, entitled STAPLE     CARTRIDGE COMPRISING A SEATING CAM, now U.S. Pat. Application     Publication No. 2021/0186497; -   U.S. Pat. Application Serial No. 16/720,725, entitled STAPLE     CARTRIDGE COMPRISING DRIVER RETENTION MEMBERS, now U.S. Pat.     Application Publication No. 2021/0186492; -   U.S. Pat. Application Serial No. 16/720,740, entitled STAPLE     CARTRIDGE COMPRISING DRIVER RETENTION MEMBERS, now U.S. Pat.     Application Publication No. 2021/0186494; -   U.S. Pat. Application Serial No. 16/720,788, entitled STAPLE     CARTRIDGE PROJECTIONS EXTENDING FROM A CURVED DECK SURFACE, now U.S.     Pat. Application Publication No. 2021/0186505; -   U.S. Pat. Application Serial No. 16/720,806, entitled STAPLE     CARTRIDGE COMPRISING A CURVED DECK SURFACE, now U.S. Pat.     Application Publication No. 2021/0186507; -   U.S. Pat. Application Serial No. 16/720,731, entitled SURGICAL     INSTRUMENT COMPRISING A RAPID CLOSURE MECHANISM, now U.S. Pat.     Application Publication No. 2021/0186498; -   U.S. Pat. Application Serial No. 16/720,735, entitled SURGICAL     INSTRUMENT COMPRISING A CLOSURE SYSTEM INCLUDING A CLOSURE MEMBER     AND AN OPENING MEMBER DRIVEN BY A DRIVE SCREW, now U.S. Pat.     Application Publication No. 2021/0186493; -   U.S. Pat. Application Serial No. 16/720,747, entitled SURGICAL     INSTRUMENT COMPRISING A NESTED FIRING MEMBER, now U.S. Pat.     Application Publication No. 2021/0186500; -   U.S. Pat. Application Serial No. 16/720,751, entitled STAPLE     CARTRIDGE COMPRISING A DEPLOYABLE KNIFE, now U.S. Pat. Application     Publication No. 2021/0186501 ; -   U.S. Pat. Application Serial No. 16/720,769, entitled STAPLE     CARTRIDGE COMPRISING A DETACHABLE TISSUE CUTTING KNIFE, now U.S.     Pat. Application Publication No. 2021/0186502; -   U.S. Pat. Application Serial No. 16/720,730, entitled STAPLING     SYSTEM COMPRISING A CLAMP LOCKOUT AND A FIRING LOCKOUT, now U.S.     Pat. Application Publication No. 2021/0186490; and -   U.S. Pat. Application Serial No. 16/720,742, entitled STAPLE     CARTRIDGE COMPRISING A LATCH LOCKOUT, now U.S. Pat. Application     Publication No. 2021/0186499.

Applicant of the present application owns the following U.S. Pat. Application that was filed on Nov. 7, 2019, and which is herein incorporated by reference in its entirety:

U.S. Pat. Application Serial No. 16/676,652, entitled METHOD OF COMPRESSING TISSUE WITHIN A STAPLING DEVICE AND SIMULTANEOUSLY DISPLAYING THE LOCATION OF THE TISSUE WITHIN THE JAWS, now U.S. Pat. Application Publication No. 2020/0178971.

Applicant of the present application owns the following U.S. Pat. Applications that were filed on Sep. 30, 2019, and which are each herein incorporated by reference in their respective entireties:

-   U.S. Pat. Application Serial No. 16/587,452, entitled STAPLE     CARTRIDGES COMPRISING DRIVER ARRANGEMENTS, now U.S. Pat. Application     Publication No. 2020/0100787; -   U.S. Pat. Application Serial No. 16/587,485, entitled SIGNAL AND     POWER COMMUNICATION SYSTEM POSITIONED ON A ROTATABLE SHAFT, now U.S.     Pat. Application Publication No. 2020/0093484; -   U.S. Pat. Application Serial No. 16/587,785, entitled SMART     CARTRIDGE WAKE UP OPERATION AND DATA RETENTION, now U.S. Pat. No.     11,071,545; -   U.S. Pat. Application Serial No. 16/587,803, entitled FEEDBACK     ALGORITHMS FOR MANUAL BAILOUT SYSTEMS FOR SURGICAL INSTRUMENTS, now     U.S. Pat. Application Publication No. 2020/0093506; -   U.S. Pat. Application Serial No. 16/587,838, entitled SMART SENSORS     WITH LOCAL SIGNAL PROCESSING, now U.S. Pat. Application Publication     No. 2020/0093485; and -   U.S. Pat. Application Serial No. 16/587,848, entitled SMART     CARTRIDGE WAKE UP OPERATION AND DATA RETENTION, now U.S. Pat. No.     11,076,854.

Applicant of the present application owns the following U.S. Pat. Applications that were filed on Sep. 27, 2019, and which are each herein incorporated by reference in their respective entireties:

-   U.S. Pat. Application Serial No. 16/585,866, entitled SURGICAL     INSTRUMENT COMPRISING A REPLACEABLE CARTRIDGE JAW, now U.S. Patent     Application Publication No. 2020/0138435; -   U.S. Pat. Application Serial No. 16/585,902, entitled SECONDARY     BATTERY ARRANGEMENTS FOR POWERED SURGICAL INSTRUMENTS, now U.S.     Patent Application Publication No. 2020/0138436; -   U.S. Pat. Application Serial No. 16/585,709, entitled     ROBOTICALLY-CONTROLLED SURGICAL INSTRUMENT WITH SELECTIVELY     ARTICULATABLE END EFFECTOR, now U.S. Patent Application Publication     No. 2020/009350; -   U.S. Pat. Application Serial No. 16/585,718, entitled TORQUE     OPTIMIZATION FOR SURGICAL INSTRUMENTS, now U.S. Patent Application     Publication No. 2020/0107829; and -   U.S. Pat. Application Serial No. 16/585,883, entitled INTERFACE     SYSTEMS FOR USE WITH SURGICAL INSTRUMENTS, now U.S. Patent     Application Publication No. 2020/0178958.

Applicant of the present application owns the following U.S. Patent Application that was filed on Sep. 26, 2019, and which is herein incorporated by reference in its entirety:

U.S. Pat. Application Serial No. 16/583,640, entitled SURGICAL INSTRUMENT WITH WIRELESS COMMUNICATION BETWEEN CONTROL UNIT AND SENSOR TRANSPONDERS, now U.S. Patent Application Publication No. 2020/0085427.

Applicant of the present application owns the following U.S. Pat. Application that was filed on Sep. 25, 2019, and which is herein incorporated by reference in its entirety:

U.S. Pat. Application Serial No. 16/581,945, entitled TIME DEPENDENT EVALUATION OF SENSOR DATA TO DETERMINE STABILITY, CREEP, AND VISCOELASTIC ELEMENTS OF MEASURES, now U.S. Patent Application Publication No. 2020/0100699.

Applicant of the present application owns the following U.S. Pat. Applications that were filed on Sep. 24, 2019, and which are each herein incorporated by reference in their respective entireties:

-   U.S. Pat. Application Serial No. 16/580,286, entitled SURGICAL     CUTTING AND FASTENING INSTRUMENT HAVING RF ELECTRODES, now U.S. Pat.     Application Publication No. 2020/0100783; -   U.S. Pat. Application Serial No. 16/580,467, entitled SURGICAL     CUTTING AND STAPLING INSTRUMENTS, now U.S. Patent Application     Publication No. 2020/0085425; -   U.S. Pat. Application Serial No. 16/580,493, entitled LOCAL DISPLAY     OF TISSUE PARAMETER STABILIZATION, now U.S. Patent Application     Publication No. 2020/0085431; and -   U.S. Pat. Application Serial No. 16/580,554, entitled MODULAR     STABILITY ASSEMBLY, now U.S. Patent Application Publication No.     2020/0085436.

Applicant of the present application owns the following U.S. Patent Application that was filed on Sep. 19, 2019, and which is herein incorporated by reference in its entirety:

U.S. Pat. Application Serial No. 16/576,076, entitled SURGICAL INSTRUMENT WITH WIRELESS COMMUNICATION BETWEEN CONTROL UNIT AND REMOTE SENSOR, now U.S. Patent Application Publication No. 2020/0085518.

Applicant of the present application owns the following U.S. Patent Application that was filed on Sep. 13, 2019, and which is herein incorporated by reference in its entirety:

U.S. Pat. Application Serial No. 16/570,126, entitled SURGICAL INSTRUMENT WITH DETECTION SENSORS, now U.S. Patent Application Publication No. 2020/0138434.

Applicant of the present application owns the following U.S. Patent Application that was filed on Aug. 28, 2019, and which is herein incorporated by reference in its entirety:

U.S. Pat. Application Serial No. 16/553,781, entitled FASTENER CARTRIDGE ASSEMBLY COMPRISING A FIXED ANVIL AND DIFFERENT STAPLE HEIGHTS, now U.S. Patent Application Publication No. 2020/0078016.

Applicant of the present application owns the following U.S. Patent Application that was filed on Aug. 21, 2019, and which is herein incorporated by reference in its entirety:

U.S. Pat. Application Serial No. 16/546,599, entitled SURGICAL STAPLE STRIPS FOR PERMITTING VARYING STAPLE PROPERTIES AND ENABLING EASY CARTRIDGE LOADING, now U.S. Patent Application Publication No. 2020/0046356.

Applicant of the present application owns the following U.S. Patent Application that was filed on Aug. 20, 2019, and which is herein incorporated by reference in its entirety:

-   U.S. Pat. Application Serial No. 16/545,077, entitled FIRING SYSTEM     LOCKOUT ARRANGEMENTS FOR SURGICAL INSTRUMENTS, now U.S. Patent     Application Publication No. 2020/0054332; -   U.S. Pat. Application Serial No. 16/545,085, entitled FIRING SYSTEM     LOCKOUT ARRANGEMENTS FOR SURGICAL INSTRUMENTS, now U.S. Patent     Application Publication No. 2020/0054333; -   U.S. Pat. Application Serial No. 16/545,101, entitled FIRING SYSTEM     LOCKOUT ARRANGEMENTS FOR SURGICAL INSTRUMENTS, now U.S. Patent     Application Publication No. 2020/0054334; and -   U.S. Pat. Application Serial No. 16/545,420, entitled ENDOSCOPIC     SURGICAL INSTRUMENT WITH A HANDLE THAT CAN ARTICULATE WITH RESPECT     TO THE SHAFT, now U.S. Patent Application Publication No.     2020/0077994.

Applicant of the present application owns the following U.S. Pat. Application that was filed on Aug. 19, 2019, and which is herein incorporated by reference in its entirety:

U.S. Pat. Application Serial No. 16/544,045, entitled SURGICAL STAPLER WITH PLURALITY OF CUTTING ELEMENTS, now U.S. Pat. Application Publication No. 2019/0365384.

Applicant of the present application owns the following U.S. Pat. Application that was filed on Aug. 15, 2019, and which is herein incorporated by reference in its entirety:

- U.S. Pat. Application Serial No. 16/541,634, entitled SURGICAL INSTRUMENT HAVING A FEEDBACK SYSTEM, now U.S. Pat. Application Publication No. 2020/0038016.

Applicant of the present application owns the following U.S. Pat. Applications that were filed on Aug. 14, 2019, and which are each herein incorporated by reference in their respective entireties:

-   U.S. Pat. Application Serial No. 16/540,437, entitled MODULAR     SURGICAL INSTRUMENTS, now U.S. Pat. Application Publication No.     2020/0069308; and -   U.S. Pat. Application Serial No. 16/540,670, entitled MOTORIZED     SURGICAL CUTTING AND FASTENING INSTRUMENT, now U.S. Patent     Application Publication No. 2020/0038020.

Applicant of the present application owns the following U.S. Patent Application that was filed on Aug. 13, 2019, and which is herein incorporated by reference in its entirety:

- U.S. Pat. Application Serial No. 16/539,176, entitled END EFFECTOR FOR USE WITH A SURGICAL FASTENING INSTRUMENT, now U.S. Pat. Application Publication No. 2020/0038018.

Applicant of the present application owns the following U.S. Pat. Application that was filed on Aug. 12, 2019, and which is herein incorporated by reference in its entirety:

- U.S. Pat. Application Serial No. 16/538,285, entitled STAPLE FORMATION DETECTION MECHANISMS, now U.S. Pat. Application Publication No. 2020/0138437.

Applicant of the present application owns the following U.S. Pat. Application that was filed on Jul. 30, 2019, and which is herein incorporated by reference in its entirety:

- U.S. Pat. Application Serial No. 16/526,145, entitled SURGICAL INSTRUMENT WITH FIRING LOCKOUT, now U.S. Pat. Application Publication No. 2020/0022702.

Applicant of the present application owns the following U.S. Pat. Application that was filed on Jul. 25, 2019, and which is herein incorporated by reference in its entirety:

- U.S. Pat. Application Serial No. 16/521,794, entitled SURGICAL TOOL WITH MANUAL CONTROL OF END EFFECTOR JAWS, now U.S. Pat. Application Publication No. 2020/0015915.

Applicant of the present application owns the following U.S. Pat. Application that was filed on Mar. 22, 2019, and which is herein incorporated by reference in its entirety:

U.S. Pat. Application Serial No. 16/361,793, entitled SURGICAL INSTRUMENT COMPRISING AN ADAPTIVE CONTROL SYSTEM, now U.S. Pat. No. 11,090,047.

Applicant of the present application owns the following U.S. Provisional Patent Application that was filed on Mar. 21, 2019, and which is herein incorporated by reference in its entirety:

- U.S. Provisional Pat. Application Serial No. 62/821,677, entitled SURGICAL INSTRUMENT COMPRISING AN ADAPTIVE CONTROL SYSTEM.

Applicant of the present application owns the following U.S. Pat. Applications that were filed on Feb. 21, 2019, and which are each herein incorporated by reference in their respective entireties:

-   U.S. Pat. Application Serial No. 16/281,658 entitled METHODS FOR     CONTROLLING A POWERED SURGICAL STAPLER THAT HAS SEPARATE ROTARY     CLOSURE AND FIRING SYSTEMS, now U.S. Pat. Application Publication     No. 2019/0298350; -   U.S. Pat. Application Serial No. 16/281,670, entitled STAPLE     CARTRIDGE COMPRISING A LOCKOUT KEY CONFIGURED TO LIFT A FIRING     MEMBER, now U.S. Pat. Application Publication No. 2019/0298340; -   U.S. Pat. Application Serial No. 16/281,675, entitled SURGICAL     STAPLERS WITH ARRANGEMENTS FOR MAINTAINING A FIRING MEMBER THEREOF     IN A LOCKED CONFIGURATION UNLESS A COMPATIBLE CARTRIDGE HAS BEEN     INSTALLED THEREIN, now U.S. Pat. No. 11,129,611; -   U.S. Pat. Application Serial No. 16/281,685, entitled SURGICAL     INSTRUMENT COMPRISING CO-OPERATING LOCKOUT FEATURES, now U.S. Pat.     Application Publication No. 2019/0298341; -   U.S. Pat. Application Serial No. 16/281,693, entitled SURGICAL     STAPLING ASSEMBLY COMPRISING A LOCKOUT AND AN EXTERIOR ACCESS     ORIFICE TO PERMIT ARTIFICIAL UNLOCKING OF THE LOCKOUT, now U.S. Pat.     Application Publication No. 2019/0298342; -   U.S. Pat. Application Serial No. 16/281,704, entitled SURGICAL     STAPLING DEVICES WITH FEATURES FOR BLOCKING ADVANCEMENT OF A CAMMING     ASSEMBLY OF AN INCOMPATIBLE CARTRIDGE INSTALLED THEREIN, now U.S.     Pat. Application Publication No. 2019/0298356; -   U.S. Pat. Application Serial No. 16/281,707, entitled STAPLING     INSTRUMENT COMPRISING A DEACTIVATABLE LOCKOUT, now U.S. Pat.     Application Publication No. 2019/0298347; -   U.S. Pat. Application Serial No. 16/281,741, entitled SURGICAL     INSTRUMENT COMPRISING A JAW CLOSURE LOCKOUT, now U.S. Pat.     Application Publication No. 2019/0298357; -   U.S. Pat. Application Serial No. 16/281,762, entitled SURGICAL     STAPLING DEVICES WITH CARTRIDGE COMPATIBLE CLOSURE AND FIRING     LOCKOUT ARRANGEMENTS, now U.S. Pat. Application Publication No.     2019/0298343; -   U.S. Pat. Application Serial No. 16/281,660, entitled SURGICAL     STAPLE CARTRIDGE WITH FIRING MEMBER DRIVEN CAMMING ASSEMBLY THAT HAS     AN ONBOARD TISSUE CUTTING FEATURE, now U.S. Pat. No. 10,973,520; -   U.S. Pat. Application Serial No. 16/281,666, entitled SURGICAL     STAPLING DEVICES WITH IMPROVED ROTARY DRIVEN CLOSURE SYSTEMS, now     U.S. Pat. Application Publication No. 2019/0298352; -   U.S. Pat. Application Serial No. 16/281,672, entitled SURGICAL     STAPLING DEVICES WITH ASYMMETRIC CLOSURE FEATURES, now U.S. Pat.     Application Publication No. 2019/0298353; -   U.S. Pat. Application Serial No. 16/281,678, entitled ROTARY DRIVEN     FIRING MEMBERS WITH DIFFERENT ANVIL AND CHANNEL ENGAGEMENT FEATURES,     now U.S. Pat. No. 11,096,688; and -   U.S. Pat. Application Serial No. 16/281,682, entitled SURGICAL     STAPLING DEVICE WITH SEPARATE ROTARY DRIVEN CLOSURE AND FIRING     SYSTEMS AND FIRING MEMBER THAT ENGAGES BOTH JAWS WHILE FIRING, now     U.S. Pat. Application Publication No. 2019/0298346.

Applicant of the present application owns the following U.S. Provisional Patent Applications that were filed on Feb. 21, 2019, and which are each herein incorporated by reference in their respective entireties:

-   U.S. Provisional Pat. Application Serial No. 62/807,310, entitled     METHODS FOR CONTROLLING A POWERED SURGICAL STAPLER THAT HAS SEPARATE     ROTARY CLOSURE AND FIRING SYSTEMS; -   U.S. Provisional Pat. Application Serial No. 62/807,319, entitled     SURGICAL STAPLING DEVICES WITH IMPROVED LOCKOUT SYSTEMS; and -   U.S. Provisional Pat. Application Serial No. 62/807,309, entitled     SURGICAL STAPLING DEVICES WITH IMPROVED ROTARY DRIVEN CLOSURE     SYSTEMS.

Applicant of the present application owns the following U.S. Patent Applications and U.S. Patents that are each herein incorporated by reference in their respective entireties:

-   U.S. Pat. Application Serial No. 15/386,185, entitled SURGICAL     STAPLING INSTRUMENTS AND REPLACEABLE TOOL ASSEMBLIES THEREOF, now     U.S. Pat. No. 10,639,035; -   U.S. Pat. Application Serial No. 15/386,230, entitled ARTICULATABLE     SURGICAL STAPLING INSTRUMENTS, now U.S. Pat. Application Publication     No. 2018/0168649; -   U.S. Pat. Application Serial No. 15/386,221, entitled LOCKOUT     ARRANGEMENTS FOR SURGICAL END EFFECTORS, now U.S. Pat. No.     10,835,247; -   U.S. Pat. Application Serial No. 15/386,209, entitled SURGICAL END     EFFECTORS AND FIRING MEMBERS THEREOF, now U.S. Pat. Application     Publication No. 2018/0168645; -   U.S. Pat. Application Serial No. 15/386,198, entitled LOCKOUT     ARRANGEMENTS FOR SURGICAL END EFFECTORS AND REPLACEABLE TOOL     ASSEMBLIES, now U.S. Pat. No. 10,610,224; -   U.S. Pat. Application Serial No. 15/386,240, entitled SURGICAL END     EFFECTORS AND ADAPTABLE FIRING MEMBERS THEREFOR, now U.S. Pat. No.     10,973,516; -   U.S. Pat. Application Serial No. 15/385,939, entitled STAPLE     CARTRIDGES AND ARRANGEMENTS OF STAPLES AND STAPLE CAVITIES THEREIN,     now U.S. Pat. No. 10,835,246; -   U.S. Pat. Application Serial No. 15/385,941, entitled SURGICAL TOOL     ASSEMBLIES WITH CLUTCHING ARRANGEMENTS FOR SHIFTING BETWEEN CLOSURE     SYSTEMS WITH CLOSURE STROKE REDUCTION FEATURES AND ARTICULATION AND     FIRING SYSTEMS, now U.S. Pat. No. 10,736,629; -   U.S. Pat. Application Serial No. 15/385,943, entitled SURGICAL     STAPLING INSTRUMENTS AND STAPLE-FORMING ANVILS, now U.S. Pat. No.     10,667,811; -   U.S. Pat. Application Serial No. 15/385,950, entitled SURGICAL TOOL     ASSEMBLIES WITH CLOSURE STROKE REDUCTION FEATURES, now U.S. Pat. No.     10,588,630; -   U.S. Pat. Application Serial No. 15/385,945, entitled STAPLE     CARTRIDGES AND ARRANGEMENTS OF STAPLES AND STAPLE CAVITIES THEREIN,     now U.S. Pat. No. 10,893,864; -   U.S. Pat. Application Serial No. 15/385,946, entitled SURGICAL     STAPLING INSTRUMENTS AND STAPLE-FORMING ANVILS, now U.S. Pat.     Application Publication No. 2018/0168633; -   U.S. Pat. Application Serial No. 15/385,951, entitled SURGICAL     INSTRUMENTS WITH JAW OPENING FEATURES FOR INCREASING A JAW OPENING     DISTANCE, now U.S. Pat. No. 10,568,626; -   U.S. Pat. Application Serial No. 15/385,953, entitled METHODS OF     STAPLING TISSUE, now U.S. Pat. No. 10,675,026; -   U.S. Pat. Application Serial No. 15/385,954, entitled FIRING MEMBERS     WITH NON-PARALLEL JAW ENGAGEMENT FEATURES FOR SURGICAL END     EFFECTORS, now U.S. Pat. No. 10,624,635; -   U.S. Pat. Application Serial No. 15/385,955, entitled SURGICAL END     EFFECTORS WITH EXPANDABLE TISSUE STOP ARRANGEMENTS, now U.S. Pat.     No. 10,813,638; -   U.S. Pat. Application Serial No. 15/385,948, entitled SURGICAL     STAPLING INSTRUMENTS AND STAPLE-FORMING ANVILS, now U.S. Pat. No.     11,134,942; -   U.S. Pat. Application Serial No. 15/385,956, entitled SURGICAL     INSTRUMENTS WITH POSITIVE JAW OPENING FEATURES, now U.S. Pat. No.     10,588,631; -   U.S. Pat. Application Serial No. 15/385,958, entitled SURGICAL     INSTRUMENTS WITH LOCKOUT ARRANGEMENTS FOR PREVENTING FIRING SYSTEM     ACTUATION UNLESS AN UNSPENT STAPLE CARTRIDGE IS PRESENT, now U.S.     Pat. No. 10,639,034; -   U.S. Pat. Application Serial No. 15/385,947, entitled STAPLE     CARTRIDGES AND ARRANGEMENTS OF STAPLES AND STAPLE CAVITIES THEREIN,     now U.S. Pat. No. 10,568,947; -   U.S. Pat. Application Serial No. 15/385,896, entitled METHOD FOR     RESETTING A FUSE OF A SURGICAL INSTRUMENT SHAFT, now U.S. Pat. No.     11,090,048; -   U.S. Pat. Application Serial No. 15/385,898, entitled STAPLE-FORMING     POCKET ARRANGEMENT TO ACCOMMODATE DIFFERENT TYPES OF STAPLES, now     U.S. Pat. No. 10,537,325; -   U.S. Pat. Application Serial No. 15/385,899, entitled SURGICAL     INSTRUMENT COMPRISING IMPROVED JAW CONTROL, now U.S. Pat. No.     10,758,229; -   U.S. Pat. Application Serial No. 15/385,901, entitled STAPLE     CARTRIDGE AND STAPLE CARTRIDGE CHANNEL COMPRISING WINDOWS DEFINED     THEREIN, now U.S. Pat. No. 10,667,809; -   U.S. Pat. Application Serial No. 15/385,902, entitled SURGICAL     INSTRUMENT COMPRISING A CUTTING MEMBER, now U.S. Pat. No.     10,888,322; -   U.S. Pat. Application Serial No. 15/385,904, entitled STAPLE FIRING     MEMBER COMPRISING A MISSING CARTRIDGE AND/OR SPENT CARTRIDGE     LOCKOUT, now U.S. Pat. No. 10,881,401; -   U.S. Pat. Application Serial No. 15/385,905, entitled FIRING     ASSEMBLY COMPRISING A LOCKOUT, now U.S. Pat. No. 10,695,055; -   U.S. Pat. Application Serial No. 15/385,907, entitled SURGICAL     INSTRUMENT SYSTEM COMPRISING AN END EFFECTOR LOCKOUT AND A FIRING     ASSEMBLY LOCKOUT, now U.S. Pat. Application Publication No.     2018/0168608; -   U.S. Pat. Application Serial No. 15/385,908, entitled FIRING     ASSEMBLY COMPRISING A FUSE, now U.S. Pat. Application Publication     No. 2018/0168609; -   U.S. Pat. Application Serial No. 15/385,909, entitled FIRING     ASSEMBLY COMPRISING A MULTIPLE FAILED-STATE FUSE, now U.S. Pat.     Application Publication No. 2018/0168610; -   U.S. Pat. Application Serial No. 15/385,920, entitled STAPLE-FORMING     POCKET ARRANGEMENTS, now U.S. Pat. No. 10,499,914; -   U.S. Pat. Application Serial No. 15/385,913, entitled ANVIL     ARRANGEMENTS FOR SURGICAL STAPLERS, now U.S. Pat. Application     Publication No. 2018/0168614; -   U.S. Pat. Application Serial No. 15/385,914, entitled METHOD OF     DEFORMING STAPLES FROM TWO DIFFERENT TYPES OF STAPLE CARTRIDGES WITH     THE SAME SURGICAL STAPLING INSTRUMENT, now U.S. Pat. Application     Publication No. 2018/0168615; -   U.S. Pat. Application Serial No. 15/385,893, entitled BILATERALLY     ASYMMETRIC STAPLE-FORMING POCKET PAIRS, now U.S. Pat. No.     10,682,138; -   U.S. Pat. Application Serial No. 15/385,929, entitled CLOSURE     MEMBERS WITH CAM SURFACE ARRANGEMENTS FOR SURGICAL INSTRUMENTS WITH     SEPARATE AND DISTINCT CLOSURE AND FIRING SYSTEMS, now U.S. Pat. No.     10,667,810; -   U.S. Pat. Application Serial No. 15/385,911, entitled SURGICAL     STAPLERS WITH INDEPENDENTLY ACTUATABLE CLOSING AND FIRING SYSTEMS,     now U.S. Pat. No. 10,448,950; -   U.S. Pat. Application Serial No. 15/385,927, entitled SURGICAL     STAPLING INSTRUMENTS WITH SMART STAPLE CARTRIDGES, now U.S. Pat.     Application Publication No. 2018/0168625; -   U.S. Pat. Application Serial No. 15/385,917, entitled STAPLE     CARTRIDGE COMPRISING STAPLES WITH DIFFERENT CLAMPING BREADTHS, now     U.S. Pat. No. 10,993,715; -   U.S. Pat. Application Serial No. 15/385,900, entitled STAPLE-FORMING     POCKET ARRANGEMENTS COMPRISING PRIMARY SIDEWALLS AND POCKET     SIDEWALLS, now U.S. Pat. No. 10,898,186; -   U.S. Pat. Application Serial No. 15/385,931, entitled NO-CARTRIDGE     AND SPENT CARTRIDGE LOCKOUT ARRANGEMENTS FOR SURGICAL STAPLERS, now     U.S. Pat. No. 10,980,536; -   U.S. Pat. Application Serial No. 15/385,915, entitled FIRING MEMBER     PIN ANGLE, now U.S. Pat. No. 10,779,823; -   U.S. Pat. Application Serial No. 15/385,897, entitled STAPLE-FORMING     POCKET ARRANGEMENTS COMPRISING ZONED FORMING SURFACE GROOVES, now     U.S. Pat. Application Publication No. 2018/0168598; -   U.S. Pat. Application Serial No. 15/385,922, entitled SURGICAL     INSTRUMENT WITH MULTIPLE FAILURE RESPONSE MODES, now U.S. Pat. No.     10,426,471; -   U.S. Pat. Application Serial No. 15/385,924, entitled SURGICAL     INSTRUMENT WITH PRIMARY AND SAFETY PROCESSORS, now U.S. Pat. No.     10,758,230; -   U.S. Pat. Application Serial No. 15/385,910, entitled ANVIL HAVING A     KNIFE SLOT WIDTH, now U.S. Pat. Application Publication No.     2018/0168611; -   U.S. Pat. Application Serial No. 15/385,903, entitled CLOSURE MEMBER     ARRANGEMENTS FOR SURGICAL INSTRUMENTS, now U.S. Pat. No. 10,617,414; -   U.S. Pat. Application Serial No. 15/385,906, entitled FIRING MEMBER     PIN CONFIGURATIONS, now U.S. Pat. No. 10,856,868; -   U.S. Pat. Application Serial No. 15/386,188, entitled STEPPED STAPLE     CARTRIDGE WITH ASYMMETRICAL STAPLES, now U.S. Pat. No. 10,537,324; -   U.S. Pat. Application Serial No. 15/386,192, entitled STEPPED STAPLE     CARTRIDGE WITH TISSUE RETENTION AND GAP SETTING FEATURES, now U.S.     Pat. No. 10,687,810; -   U.S. Pat. Application Serial No. 15/386,206, entitled STAPLE     CARTRIDGE WITH DEFORMABLE DRIVER RETENTION FEATURES, now U.S. Pat.     No. 10,945,727; -   U.S. Pat. Application Serial No. 15/386,226, entitled DURABILITY     FEATURES FOR END EFFECTORS AND FIRING ASSEMBLIES OF SURGICAL     STAPLING INSTRUMENTS, now U.S. Pat. Application Publication No.     2018/0168648; U.S. Pat. Application Serial No. 15/386,222, entitled     SURGICAL STAPLING INSTRUMENTS HAVING END EFFECTORS WITH POSITIVE     OPENING FEATURES, now U.S. Pat. Application Publication No.     2018/0168647; U.S. Pat. Application Serial No. 15/386,236, entitled     CONNECTION PORTIONS FOR DEPOSABLE LOADING UNITS FOR SURGICAL     STAPLING INSTRUMENTS, now U.S. Pat. Application Publication No.     2018/0168650; -   U.S. Pat. Application Serial No. 15/385,887, entitled METHOD FOR     ATTACHING A SHAFT ASSEMBLY TO A SURGICAL INSTRUMENT AND,     ALTERNATIVELY, TO A SURGICAL ROBOT, now U.S. Pat. No. 10,835,245; -   U.S. Pat. Application Serial No. 15/385,889, entitled SHAFT ASSEMBLY     COMPRISING A MANUALLY-OPERABLE RETRACTION SYSTEM FOR USE WITH A     MOTORIZED SURGICAL INSTRUMENT SYSTEM, now U.S. Pat. Application     Publication No. 2018/0168590; -   U.S. Pat. Application Serial No. 15/385,890, entitled SHAFT ASSEMBLY     COMPRISING SEPARATELY ACTUATABLE AND RETRACTABLE SYSTEMS, now U.S.     Pat. No. 10,675,025; -   U.S. Pat. Application Serial No. 15/385,891, entitled SHAFT ASSEMBLY     COMPRISING A CLUTCH CONFIGURED TO ADAPT THE OUTPUT OF A ROTARY     FIRING MEMBER TO TWO DIFFERENT SYSTEMS, now U.S. Pat. Application     Publication No. 2018/0168592; -   U.S. Pat. Application Serial No. 15/385,892, entitled SURGICAL     SYSTEM COMPRISING A FIRING MEMBER ROTATABLE INTO AN ARTICULATION     STATE TO ARTICULATE AN END EFFECTOR OF THE SURGICAL SYSTEM, now U.S.     Pat. No. 10,918,385; -   U.S. Pat. Application Serial No. 15/385,894, entitled SHAFT ASSEMBLY     COMPRISING A LOCKOUT, now U.S. Pat. No. 10,492,785; -   U.S. Pat. Application Serial No. 15/385,895, entitled SHAFT ASSEMBLY     COMPRISING FIRST AND SECOND ARTICULATION LOCKOUTS, now U.S. Pat. No.     10,542,982; -   U.S. Pat. Application Serial No. 15/385,916, entitled SURGICAL     STAPLING SYSTEMS, now U.S. Pat. Application Publication No.     2018/0168575; -   U.S. Pat. Application Serial No. 15/385,918, entitled SURGICAL     STAPLING SYSTEMS, now U.S. Pat. Application Publication No.     2018/0168618; -   U.S. Pat. Application Serial No. 15/385,919, entitled SURGICAL     STAPLING SYSTEMS, now U.S. Pat. Application Publication No.     2018/0168619; -   U.S. Pat. Application Serial No. 15/385,921, entitled SURGICAL     STAPLE CARTRIDGE WITH MOVABLE CAMMING MEMBER CONFIGURED TO DISENGAGE     FIRING MEMBER LOCKOUT FEATURES, now U.S. Pat. No. 10,687,809; -   U.S. Pat. Application Serial No. 15/385,923, entitled SURGICAL     STAPLING SYSTEMS, now U.S. Pat. Application Publication No.     2018/0168623; -   U.S. Pat. Application Serial No. 15/385,925, entitled JAW ACTUATED     LOCK ARRANGEMENTS FOR PREVENTING ADVANCEMENT OF A FIRING MEMBER IN A     SURGICAL END EFFECTOR UNLESS AN UNFIRED CARTRIDGE IS INSTALLED IN     THE END EFFECTOR, now U.S. Pat. No. 10,517,595; -   U.S. Pat. Application Serial No. 15/385,926, entitled AXIALLY     MOVABLE CLOSURE SYSTEM ARRANGEMENTS FOR APPLYING CLOSURE MOTIONS TO     JAWS OF SURGICAL INSTRUMENTS, now U.S. Pat. Application Publication     No. 2018/0168577; -   U.S. Pat. Application Serial No. 15/385,928, entitled PROTECTIVE     COVER ARRANGEMENTS FOR A JOINT INTERFACE BETWEEN A MOVABLE JAW AND     ACTUATOR SHAFT OF A SURGICAL INSTRUMENT, now U.S. Pat. Application     Publication No. 2018/0168578; -   U.S. Pat. Application Serial No. 15/385,930, entitled SURGICAL END     EFFECTOR WITH TWO SEPARATE COOPERATING OPENING FEATURES FOR OPENING     AND CLOSING END EFFECTOR JAWS, now U.S. Pat. Application Publication     No. 2018/0168579; -   U.S. Pat. Application Serial No. 15/385,932, entitled ARTICULATABLE     SURGICAL END EFFECTOR WITH ASYMMETRIC SHAFT ARRANGEMENT, now U.S.     Pat. No. 15/385,932; -   U.S. Pat. Application Serial No. 15/385,933, entitled ARTICULATABLE     SURGICAL INSTRUMENT WITH INDEPENDENT PIVOTABLE LINKAGE DISTAL OF AN     ARTICULATION LOCK, now U.S. Pat. No. 10,603,036; -   U.S. Pat. Application Serial No. 15/385,934, entitled ARTICULATION     LOCK ARRANGEMENTS FOR LOCKING AN END EFFECTOR IN AN ARTICULATED     POSITION IN RESPONSE TO ACTUATION OF A JAW CLOSURE SYSTEM, now U.S.     Pat. No. 10,582,928; -   U.S. Pat. Application Serial No. 15/385,935, entitled LATERALLY     ACTUATABLE ARTICULATION LOCK ARRANGEMENTS FOR LOCKING AN END     EFFECTOR OF A SURGICAL INSTRUMENT IN AN ARTICULATED CONFIGURATION,     now U.S. Pat. No. 10,524,789; -   U.S. Pat. Application Serial No. 15/385,936, entitled ARTICULATABLE     SURGICAL INSTRUMENTS WITH ARTICULATION STROKE AMPLIFICATION     FEATURES, now U.S. Pat. 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Applicant of the present application owns the following U.S. Patent Applications that were filed on Jun. 24, 2016 and which are each herein incorporated by reference in their respective entireties:

-   U.S. Pat. Application Serial No. 15/191,775, entitled STAPLE     CARTRIDGE COMPRISING WIRE STAPLES AND STAMPED STAPLES, now U.S. Pat.     No. 11,000.278; -   U.S. Pat. Application Serial No. 15/191,807, entitled STAPLING     SYSTEM FOR USE WITH WIRE STAPLES AND STAMPED STAPLES, now U.S. Pat.     No. 10,702,270; -   U.S. Pat. Application Serial No. 15/191,834, entitled STAMPED     STAPLES AND STAPLE CARTRIDGES USING THE SAME, now U.S. Pat. No.     10,542,979; -   U.S. Pat. Application Serial No. 15/191,788, entitled STAPLE     CARTRIDGE COMPRISING OVERDRIVEN STAPLES, now U.S. Pat. No.     10,675,024; and -   U.S. Pat. Application Serial No. 15/191,818, entitled STAPLE     CARTRIDGE COMPRISING OFFSET LONGITUDINAL STAPLE ROWS, now U.S. Pat.     No. 10,893,863.

Before explaining various aspects of surgical devices and robotic systems in detail, it should be noted that the illustrative examples are not limited in application or use to the details of construction and arrangement of parts illustrated in the accompanying drawings and description. The illustrative examples may be implemented or incorporated in other aspects, variations and modifications, and may be practiced or carried out in various ways. Further, unless otherwise indicated, the terms and expressions employed herein have been chosen for the purpose of describing the illustrative examples for the convenience of the reader and are not for the purpose of limitation thereof. Also, it will be appreciated that one or more of the following-described aspects, expressions of aspects, and/or examples, can be combined with any one or more of the other following-described aspects, expressions of aspects and/or examples.

Certain exemplary embodiments will now be described to provide an overall understanding of the principles of the structure, function, manufacture, and use of the devices and methods disclosed herein. One or more examples of these exemplary embodiments are illustrated in the accompanying drawings. Those of ordinary skill in the art will understand that the devices and methods specifically described herein and illustrated in the accompanying drawings are non-limiting exemplary embodiments and that the scope of the various exemplary embodiments of the present invention is defined solely by the claims. The features illustrated or described in connection with one exemplary embodiment may be combined with the features of other exemplary embodiments. Such modifications and variations are intended to be included within the scope of the present invention.

FIG. 1 depicts a master controller 12 that is used in connection with a robotic arm slave cart 20 of the type depicted in FIG. 2 . Master controller 12 and robotic arm slave cart 20, as well as their respective components and control systems are collectively referred to herein as a robotic system 10. Examples of such systems and devices are disclosed in U.S. Pat. No. 7,524,320, entitled MECHANICAL ACTUATOR INTERFACE SYSTEM FOR ROBOTIC SURGICAL TOOLS, which issued Apr. 28, 2009, and which is incorporated by reference herein in its entirety. As is known, the master controller 12 generally includes master controllers (generally represented as 14 in FIG. 1 ) which are grasped by the surgeon and manipulated in space while the surgeon views the procedure via a stereo display 16. The master controllers 12 generally comprise manual input devices which preferably move with multiple degrees of freedom, and which often have an actuatable handle for actuating tools (for example, for closing grasping jaws, advancing a cutting edge, firing staples, applying an electrical potential to an electrode, or the like).

As seen in FIG. 2 , the robotic arm cart 20 is configured to actuate a plurality of surgical tools, generally designated as 30. Various robotic surgery systems and methods employing master controller and robotic arm cart arrangements are disclosed in U.S. Pat. No. 6,132,368, entitled MULTI-COMPONENT TELEPRESENCE SYSTEM AND METHOD, which issued Oct. 17, 2000, and which is incorporated by reference herein in its entirety. As shown, the robotic arm cart 20 includes a base 22 from which, in the illustrated embodiment, three surgical tools 30 are supported. The surgical tools 30 are each supported by a series of manually articulatable linkages, generally referred to as set-up joints 32, and a robotic manipulator 34. These structures are herein illustrated with protective covers extending over much of the robotic linkage. These protective covers may be optional, and may be limited in size or entirely eliminated to minimize the inertia that is encountered by the servo mechanisms used to manipulate such devices, to limit the volume of moving components so as to avoid collisions, and to limit the overall weight of the cart 20. The cart 20 generally has dimensions suitable for transporting the cart 20 between operating rooms. The cart 20 is configured to typically fit through standard operating room doors and onto standard hospital elevators. The cart 20 would preferably have a weight and include a wheel (or other transportation) system that allows the cart 20 to be positioned adjacent to an operating table by a single attendant.

Referring now to FIG. 3 , robotic manipulators 34 as shown include a linkage 38 that constrains movement of the surgical tool 30. Linkage 38 includes rigid links coupled together by rotational joints in a parallelogram arrangement so that the surgical tool 30 rotates around a point in space 40, as more fully described in U.S. Pat. No. 5,817,084, the full disclosure of which is herein incorporated by reference. The parallelogram arrangement constrains rotation to pivoting about an axis 40 a, sometimes called the pitch axis. The links supporting the parallelogram linkage are pivotally mounted to set-up joints 32 (FIG. 2 ) so that the surgical tool 30 further rotates about an axis 40 b, sometimes called the yaw axis. The pitch and yaw axes 40 a, 40 b intersect at the remote center 42, which is aligned along a shaft 44 of the surgical tool 30. The surgical tool 30 may have further degrees of driven freedom as supported by manipulator 50, including sliding motion of the surgical tool 30 along the longitudinal tool axis “LT-LT”. As the surgical tool 30 slides along the tool axis LT-LT relative to manipulator 50 (arrow 40 c), remote center 42 remains fixed relative to base 52 of manipulator 50. Hence, the entire manipulator is generally moved to re-position remote center 42. Linkage 54 of manipulator 50 is driven by a series of motors 56. These motors actively move linkage 54 in response to commands from a processor of a control system. Motors 56 are also employed to manipulate the surgical tool 30. An alternative set-up joint structure is illustrated in FIG. 4 . In this embodiment, a surgical tool 30 is supported by an alternative manipulator structure 50′ between two tissue manipulation tools.

Other embodiments may incorporate a wide variety of alternative robotic structures, including those described in U.S. Pat. No. 5,878,193, entitled AUTOMATED ENDOSCOPE SYSTEM FOR OPTIMAL POSITIONING, which issued Mar. 2, 1999, and which is incorporated by reference herein in its entirety. Additionally, while the data communication between a robotic component and the processor of the robotic surgical system is described with reference to communication between the surgical tool 30 and the master controller 12, similar communication may take place between circuitry of a manipulator, a set-up joint, an endoscope or other image capture device, or the like, and the processor of the robotic surgical system for component compatibility verification, component-type identification, component calibration (such as off-set or the like) communication, confirmation of coupling of the component to the robotic surgical system, or the like.

A surgical tool 100 adapted for use with a robotic system 10 is depicted in FIG. 5 . The surgical tool 100 generally includes an elongate shaft assembly 200 that is operably coupled to the manipulator 50 (FIGS. 3 and 4 ) by a tool mounting portion, generally designated as 300. The surgical tool 100 further comprises an articulation joint 700 and an end effector 1000 attached to the shaft assembly 200 by way of the articulation joint 700. The surgical end effector 1000 comprises a channel 1020 and an anvil assembly 1100. The surgical tool 100 further includes an interface that mechanically and electrically couples the tool mounting portion 300 to the manipulator. The tool mounting portion 300 operably supports a plurality of drive systems for generating various forms of control motions necessary to operate a particular type of end effector that is coupled to the distal end of the elongate shaft assembly 200 such as, for example, drive systems 350, 370, 430, and 450. The drive systems 350, 370, 430, and 450 can be configured to receive corresponding actuation motions from the robotic system 10 and/or can comprise an onboard motor configured to provide actuation motions thereto. The drive systems 350, 370, 430, and 450 are configured to convert the actuation motions from the motors (e.g. the robotic system 10) to control motions of the end effector 1000, such as articulation of the end effector, clamping and unclamping tissue by moving the anvil assembly 1100, and/or firing staples and cutting tissue with a firing member, for example.

While the various exemplary embodiments described herein are configured to operably interface with and be at least partially actuated by a robotic system, the end effector and elongate shaft components may be effectively employed in connection with handheld instruments. For example, FIGS. 6-8 depict a handheld surgical instrument 3400 that may employ various components and systems described herein to operably actuate an end effector, such as end effector 1000, coupled thereto. In the exemplary embodiment depicted in FIGS. 6-8 , the handheld surgical instrument comprises a handle assembly 3500, a shaft assembly 3402, and the end effector 1000. A quick disconnect joint 3210 is employed to attach the end effector 1000 to the shaft assembly 3402. The handle assembly 3500 comprises one or more motors powered by a battery 3554 housed within a handle housing 3502. The handle assembly 3500 comprises one or more motorized and/or manual drive systems configured to actuate various functions of the end effector 1000 such as articulation, clamping and unclamping tissue, and/or cutting and stapling tissue. The handle assembly 3500 may comprise one or more electronic actuators and/or triggers configured to actuate various functions of the end effector 1000. The handle assembly 3500 may also include one or more manual actuators and/or triggers configured to actuate various functions of the end effector, such as the closure trigger 3530 configured to clamp tissue, for example.

The robotic surgical tool assembly described below can be employed with the assemblies, embodiments, and/or systems disclosed in U.S. Pat. Application Publication No. 20140001231, entitled FIRING SYSTEM LOCKOUT ARRANGEMENTS FOR SURGICAL INSTRUMENTS, which published Jan. 2, 2014, the entire disclosure of which is incorporated by reference herein.

FIGS. 9-21 illustrate a robotic surgical tool assembly 2000. The robotic surgical tool assembly 2000 is configured to be attached to and detached from an attachment interface of a surgical robot and/or a surgical instrument handle such as those disclosed herein. The robotic surgical tool assembly 2000 may also be used with the surgical robotic systems and assemblies disclosed in U.S. Pat. Application Serial No. 17/363,578, entitled ELECTROSURGICAL TOOL WITH CAPACITIVE COUPLING MITIGATION SHEATH ASSEMBLY, filed on Jun. 30, 2021, which is incorporated by reference herein in its entirety. The surgical robot and/or surgical instrument handle are configured to actuate the various actuators of the surgical tool assembly 2000. In at least one instance, the various actuators are powered by a plurality of motors, as discussed in greater detail herein. In another instance, the various actuators are non-powered and are manually actuated. In at least one instance, one or more of the actuators are actuated by a motor and one or more of the actuators are actuated manually. The robotic surgical tool assembly 2000 is configured to clamp and unclamp, staple, and cut tissue with the end effector assembly 2300.

The surgical robotic tool assembly 2000 comprises a shaft assembly 2100 housing a plurality of actuators and/or electronics, an articulation region 2200, and an end effector assembly 2300 attached to the shaft assembly 2100 by way of the articulation region 2200. Discussed in greater detail herein, the end effector assembly 2300 is articulatable relative to the shaft assembly 2100 about multiple articulation axes; however, only one articulation axis may be employed in alternative aspects of the present disclosure. The articulation region 2200 comprises a first articulation joint 2220 defining a first articulation axis AA1 and a second articulation joint 2230 defining a second articulation axis AA2. Embodiments are also envisioned where the articulation axes AA1, AA2 intersect and are not longitudinally spaced apart.

The surgical robotic tool assembly 2000 further comprises a cable-driven actuation system 2400 configured to clamp and unclamp tissue and articulate the end effector assembly 2300 about the first articulation axis AA1 and the second articulation axis. The surgical robotic tool assembly 2000 further comprises a firing drive 2500 configured to cut and staple tissue clamped with the end effector assembly 2300.

To clamp and unclamp, staple, and cut tissue with the end effector assembly 2300, the end effector assembly 2300 comprises a first jaw 2320 and a second jaw 2340 movable relative to the first jaw 2320. The first jaw 2320 is fixedly attached to the articulation region 2200 by way of a proximal coupler portion 2310. The first jaw 2320 comprises a cartridge channel 2321 and a replaceable staple cartridge 2330 configured to be installed into and removed from the cartridge channel 2321. In other aspects of the present disclosure, the staple cartridge 2330 can be an integral, non-replaceable component of the cartridge channel 2321. Referring to FIG. 10 , the cartridge channel 2321 comprises an internal channel 2323 configured to receive the replaceable staple cartridge 2330. The staple cartridge 2330 comprises a cartridge body 2331, a plurality of staples 2334 removably stored within staple cavities 2332 defined in the cartridge body 2331, and a pan 2338 configured to hold the staples 2334 in the cartridge body 2331. The cartridge body 2331 further comprises a longitudinal slot 2333 through which a firing member assembly 2570 comprising a cutting knife can travel to cut tissue. The cartridge body 2331 further comprises a deck 2334 in which said staple cavities 2332 are defined.

The second jaw 2340 comprises an anvil 2341 pivotably coupled to the cartridge channel 2321 by way of pins 2344 extending from a proximal end 2342 of the anvil 2341 and corresponding slots 2344 defined in a proximal end 2322 of the cartridge channel 2321. The anvil 2341 comprises a staple-forming surface 2345 comprising a plurality of staple-forming pockets defined therein. The anvil 2341 is movable between an unclamped configuration and a fully clamped configuration to clamp tissue between the jaws 2320, 2340. Once tissue is clamped between the jaws 2320, 2340, the firing member assembly 2570 can be actuated to cut tissue with the cutting knife and deploy the staples 2334 from the staple cavities 2332 to staple tissue.

Referring primarily to FIG. 11 , the shaft assembly 2100 comprises an outer shaft 2101 and a distal coupler 2110 attached to a distal end of the outer shaft 2101. The shaft assembly 2100 is configured to house a plurality of actuators and/or electrical components extending toward the end effector assembly 2300 such as, for example, the cable-driven actuation system 2400 and the firing drive 2500. The distal coupler 2110 attaches the shaft assembly 2100 to the articulation region 2200. The distal coupler 2110 comprises an aperture 2111 through which actuators and/or electrical components pass. The distal coupler 2110 comprises opposing tabs 2112 extending distally toward the articulation region 2200. Each tab 2112 comprises a pair of proximal slots 2113 configured to receive a pair of pins 2120 and a pair of distal slots 2114 configured to receive a pair of pins 2221. Referring to FIG. 13 , an input firing shaft 2510, discussed in greater detail herein, is supported between the pins 2120 by a support carriage 2121.

The articulation region 2200 comprises an articulation coupler 2210 (FIGS. 10 and 11 ) attached to the distal coupler 2110 by way of pins 2221. The articulation coupler 2210 comprises proximal tabs 2211 each comprising apertures 2212 and distal tabs 2213 journalably pinned to the proximal coupler portion 2310 by way of articulation pin 2231. The articulation coupler 2210 further comprises an aperture 2215 defined therein through which the firing drive 2500 passes, discussed in greater detail herein. The articulation coupler 2210 further comprises a plurality of cable apertures 2216 through which a plurality of cables of the cable-driven actuation system 2400 pass, discussed in greater detail herein. The proximal coupler portion 2310 comprises proximal tabs 2311 each comprising a mounting pin 2312 attaching the cartridge channel 2321 to the proximal coupler portion 2310. The proximal coupler portion 2310 further comprises an aperture 2313 through which components of the firing drive 2500 and the cable-driven actuation system 2400 pass into the end effector assembly 2300.

Referring to FIG. 13 , to actuate the firing member assembly 2570, the firing drive 2500 extends through the shaft assembly 2100, the articulation region 2200, and into the end effector assembly 2300. The firing drive 2500 comprises an input shaft 2510 extending through the shaft assembly 2100 toward a first differential gear system 2520. The first differential gear system 2520 comprises a first bevel gear 2521, a second bevel gear 2522, and a third bevel gear 2523. The first bevel gear 2521 is driven by the input shaft 2510. The second bevel gear 2522 is driven by the first bevel gear 2521. Finally, the third bevel gear 2523 is driven by the second bevel gear 2522. The second bevel gear 2522 is journalably supported by one of the pins 2221 (FIG. 11 ). The pins 2221 define the first articulation axis AA1. Thus, the end effector assembly 2300 can be articulated about the first articulation axis AA1 and the firing drive 2500 can transfer rotary motions through the first articulation joint 2220 owing to the first differential gear system 2520, discussed in greater detail herein.

Still primarily referring to FIG. 13 , the firing drive 2500 further comprises an intermediate drive shaft 2530 configured to be driven by the third bevel gear 2523. The intermediate drive shaft 2530 extends through the aperture 2215 of the articulation coupler 2210 (FIG. 11 ) toward a second differential gear system 2540. The second differential gear system 2540 comprises a first bevel gear 2541, a second bevel gear 2542, and a third bevel gear 2543. The first bevel gear 2541 is driven by the intermediate drive shaft 2530. The second bevel gear 2542 is driven by the first bevel gear 2541. Finally, the third bevel gear 2543 is driven by the second bevel gear 2542. The second bevel gear 1542 is journalably supported about the articulation pin 2231 (FIG. 11 ). Thus, the end effector assembly 2300 can also be articulated about the second articulation axis AA2 and the firing drive 2500 can transfer rotary motions through the second articulation joint 2230 owing to the second differential gear system 2540, discussed in greater detail herein.

The firing drive 2500 further comprises an output shaft 2550 driven by the third bevel gear 2543. The output shaft 2550 extends through the proximal end 2322 of the cartridge channel 2321 and comprises an output gear 2551 configured to drive the drive screw shaft 2560 (FIG. 14 ). The drive screw shaft comprises an input gear 2561 meshed with the output gear 2551 and a threaded rod portion 2562 coupled to the firing member assembly 2570 and configured to move the firing member assembly 2570 proximally and distally within the end effector assembly 2300. The firing drive 2500 can be actuated while the end effector assembly 2300 is in a straight configuration, while the end effector assembly 2300 is articulated only about the first articulation axis AA1, while the end effector assembly 2300 is only articulated about the second articulation axis AA2, and while the end effector assembly 2300 is articulated about both the first articulation axis AA1 and the second articulation axis AA2.

The cable-driven actuation system 2400 is configured to articulate the end effector assembly 2300 about the articulation axis AA1, the articulation axis AA2, and move the second jaw 2340 relative to the first jaw 2320 to clamp and unclamp tissue with the end effector assembly 2300. Discussed in greater detail herein, the cable-driven actuation system 2400 combines two independent input actuators into a single output drive to move the second jaw 2340 relative to the first jaw 2320. Such a configuration can transmit greater clamping forces distal of the articulation region 2200 where space may be limited.

Referring again to FIG. 11 , the cable-driven actuation system 2400 comprises a first cable 2410 comprising a first actuation input 2411 and a second actuation input 2412. The cable-driven actuation system 2400 further comprises a second cable 2420 comprising a third actuation input 2421 and a fourth actuation input 2422. While the actuation inputs are at opposite sides of the cables 2410, 2420, embodiments are envisioned where four separate cables are employed. The cables 2410, 2420 extend through the shaft assembly 2100 and each actuation input 2411, 2412, 2421, 2422 is configured to be actuated, or controlled, independently of each other. In at least one instance, each actuation input 2411, 2412, 2421, 2422 is actuatable by its own motor such that each motor can independently pull and release the actuation input that it actuates. In such instances, the surgical system can include at least four motors, one for each actuation input 2411, 2412, 2421, and 2422. In various aspects of the present disclosure, the surgical system can further include at least one additional motor, such as a firing drive motor, for example.

The cables 2410, 2420 extend through the shaft 2101 and through the aperture 2111. Distal of the aperture 2111, the cables 2410, 2420 are supported by a plurality of idler discs 2430, similar to that of a pulley, for example (FIG. 12 ). The idler discs 2430 comprise grooved channels configured to support the cables 2410, 2420. In the illustrated embodiment, the cable-driven actuation system 2400 comprises eight idler discs 2430; however, more or fewer idler discs are contemplated. The idler discs 2430 serve to affirmatively positioned the cables 2410, 2420 in suitable positions for applying articulation control motions, discussed in greater detail herein. The idler discs 2430 are journalably supported by the pins 2120, 2221 (FIG. 11 ). Bushings may also be utilized between the idler discs 2430 and the tabs 2112 of the distal coupler 2110. In at least one instance, the bushings are journalably supported within apertures 2212 of the tabs 2211.

Each actuation input 2411, 2412, 2421, 2422 extends through an aperture 2216 defined in the articulation coupler 2210. The cable 2410 is wrapped around a first drive disc 2440 and supported in groove 2441 of the first drive disc 2440 and the cable 2420 is wrapped around a second drive disc 2450 and supported in groove 2451 of the second drive disc 2450. The cables 2410, 2420 comprise corresponding drive nubs 2413, 2423 fixed or held within corresponding drive notches 2442, 2452. As the cables 2410, 2420 are pulled in a specific manner, the drive nubs 2413, 2423 are configured to rotate the drive discs 2440, 2450.

In at least one instance, the cables 2410, 2420 each comprise a belt. In at least one instance, the drive discs 2440, 2450 each comprise a belt-driven disc. In at least one instance, the belts comprise teeth and the belt-driven discs comprise corresponding notches, or teeth, configured to be engaged and driven by the teeth of the belts.

The second articulation joint 2230 comprises a third differential gear system 2460. The third differential gear system 2460 is positioned about the same axis as the second differential gear system 2540. In the depicted arrangement, the second differential gear system 2540 is positioned between gears of the third differential gear system 2460 and both systems include gears that rotate about the second articulation axis AA2. The third differential gear system 2460 comprises a first drive bevel gear 2461 drivingly coupled to the first drive disc 2440 and a second drive bevel gear 2462 drivingly coupled to the second drive disc 2450. The driving engagement between the gears 2461, 2462 and discs 2440, 2450 causes the discs 2440, 2450 to rotate the gears 2461, 2462. As a result, actuation of the cables 2410, 2420 can effect rotation of the first drive bevel gear 2461 and the second drive bevel gear 2462. The first drive bevel gear 2461 and the second drive bevel gear 2462 are journalably supported by the articulation pin 2231. The third differential gear system 2460 further comprises an output bevel gear 2463, which is a spider gear, drivingly coupled to the first drive bevel gear 2461 and the second drive bevel gear 2462.

The third differential gear system 2460 is nested around the second differential gear system 2540. The bevel gear 2542 and the bevel gear 2462 are configured to rotate relative to each other. The bevel gear 2543 and the bevel gear 2463 are also configured to rotate relative to each other.

Owing to the arrangement of gears, the output bevel gear 2463 is only actuated when the drive discs 2440, 2450 are rotated in opposite directions. Discussed in greater detail herein, the output bevel gear 2463 is attached to an output shaft 2470. The output shaft 2470 is driven by the output bevel gear 2463 and comprises a distal bevel output gear 2471 engaged with a corresponding drive portion 2480 comprising drive teeth 2481. The drive portion 2480 is attached to the proximal end 2342 of the anvil 2341 by way of attachment portion 2482 (FIG. 15 ) such that as the bevel output gear 2471 is actuated, i.e. rotated by the oppositely rotating first and second drive bevel gears 2461 and 2462, the anvil 2341 is rotated relative to the first jaw 2320. Operation of the robotic surgical tool assembly 2000 is described in greater detail herein.

Referring to FIGS. 16 and 17 , to articulate the end effector assembly 2300 about the first articulation axis AA1, a user and/or a surgical robot pulls both actuation inputs of one cable 2410, 2420 and releases both actuations inputs of the other cable. For example, to rotate the end effector assembly 2300 about articulation axis AA1 in direction D1 (FIG. 9 ), both actuation inputs 2411, 2412 of cable 2410 are pulled and actuation inputs 2421, 2422 of cable 2420 are released. Such cooperative actuation of cables 2410, 2420 applies a torque about the axis AA1 through the first drive disc 2440. The torque is transferred through various other drive components of the robotic surgical tool assembly 2000. For example, the drive shaft 2530 and the output shaft 2470 transfer the torque to the articulation coupler 2210 and the end effector assembly 2300 through the proximal coupler portion 2310. This transfer of torque pulls the components distal of the articulation axis AA1 in direction D1. The first differential gear system 2520 allows the bevel gear 2523 to move around axis AA1 in direction D1.

Still referring to FIGS. 16 and 17 , to rotate the end effector assembly 2300 about articulation axis AA1 in direction D2 (FIG. 9 ), both actuation inputs 2421, 2422 of cable 2420 are pulled and actuation inputs 2411, 2412 of cable 2410 are released. Such cooperative actuation of cables 2410, 2420 applies a torque about the axis AA1 through the second drive disc 2450. The torque is transferred through various other drive components of the robotic surgical tool assembly 2000. For example, the drive shaft 2530 and the output shaft 2470 transfer the torque to the articulation coupler 2210 and the end effector assembly 2300 through the proximal coupler portion 2310. This transfer of torque pulls the components distal of the articulation axis AA1 in direction D2. The first differential gear system 2520 allows the bevel gear 2523 to move around axis AA1 in direction D2.

In at least one instance, articulation of the end effector in either direction D1 or D2 about axis AA1 causes the bevel gear 2523 to back-drive the bevel gear 2522 which can back-drive the bevel gear 2521 and shaft 2510. In at least one instance, a clutch is provided proximal of the articulation axes AA1, AA2 to disengage the firing drive 2500 proximal of the articulation axes AA1, AA2. Such a clutch arrangement can prevent backdriving of a firing motor, for example. In at least one instance, the motor is backdriven by design and no clutch is provided. That said, the firing member assembly 2570 does not translate when the end effector assembly 2300 is articulated. In at least one instance, a motor control program is configured to automatically compensate for back driving of the firing drive system during articulation.

Articulation of the end effector assembly 2300 about the second articulation axis AA2 works similarly to articulation of the end effector assembly 2300 about the first articulation axis AA1 except with different combinations of actuation inputs being pulled and released. A user and/or a surgical robot or motors thereof exerts a pulling force on actuation inputs 2411, 2421 and releases actuation inputs 2412, 2422 or pulls actuation inputs 2412, 2422 and releases actuation inputs 2411, 2421. For example, to rotate the end effector assembly 2300 about articulation axis AA2 in direction D3 (FIG. 9 ), actuation inputs 2411 and 2421 of cables 2410,1420, respectively are pulled and actuation inputs 2412 and 2422 of cables 2410 and 2420, respectively, are released. Such cooperative actuation of cables 2410, 2420 applies a torque about the axis AA2 through the first drive disc 2440 and the second drive disc 2450 in direction D3. Actuating the cables 2410, 2420 in such a manner causes the discs 2440, 2450 to rotate in the same direction and, thus, the bevel gears 2461, 2462 to rotate to rotate in the same direction. This rotation applies a torque to output bevel gear 2463. The torque is transferred through various other drive components of the robotic surgical tool assembly 2000. For example, the output shaft 2470 transfers the torque to the proximal coupler portion 2310. This transfer of torque pulls the components distal of the articulation axis AA2 in direction D3. The second differential gear system 2540 allows the bevel gear 2543 to move around axis AA2 in direction D3.

To rotate the end effector assembly 2300 about articulation axis AA2 in direction D4 (FIG. 9 ), actuation inputs 2412 and 2422 of cables 2410 and 2420, respectively are pulled and actuation inputs 2411 and 2421 of cables 2410 and 2420, respectively, are released. Such cooperative actuation of cables 2410, 2420 applies a torque about the axis AA2 through the first drive disc 2440 and the second drive disc 2450 in direction D4. Actuating the cables 2410, 2420 in such a manner causes the discs 2440, 2450 and, thus, the bevel gears 2461, 2462 to rotate. This rotation applies a torque to output bevel gear 2463. The torque is transferred through various other drive components of the robotic surgical tool assembly 2000. For example, the output shaft 2470 transfers the torque to the proximal coupler portion 2310. This transfer of torque pulls the components distal of the articulation axis AA2 in direction D4. The second differential gear system 2540 allows the bevel gear 2543 to move around axis AA2 in direction D4.

In at least one instance, articulation of the end effector 2000 in either direction D3 or D4 about axis AA2 causes the bevel gear 2543 to back-drive the bevel gear 2541 which can back-drive the firing drive 2500. In at least one instance, a clutch is provided proximal of the articulation axes AA1, AA2 to disengage the firing drive 2500 proximal of the articulation axes AA1, AA2. Such a clutch arrangement can prevent backdriving of a firing motor, for example. In at least one instance, the motor is backdriven by design and no clutch is provided. That said, the firing member assembly 2570 does not translate when the end effector assembly 2300 is articulated.

As discussed above, the cable-driven actuation system 2400 is also configured to rotate, or move, the second jaw 2340 relative to the first jaw 2320. To achieve opening and closing of the jaw 2340, the drive discs 2440, 2450 are rotated in opposite directions, which drives output bevel gear 2463, which is attached to the output shaft 2470. Such antagonistic motion to rotate the jaw 2340 in a first direction, or clamping direction, is achieved by pulling actuation inputs 2411 and 2422, and releasing actuation inputs 2412 and 2421. To rotate the jaw 2340 in a second direction, or unclamping direction, which is opposite the first direction, the actuation inputs 2411 and 2422 are released, and the actuation inputs 2412 and 2421 are pulled. In at least one instance, more drive nubs than those illustrated are provided on the cables 2410, 2420. Such a configuration can permit the cables 2410, 2420 to travel greater distances while still driving the drive discs 2440, 2450. In at least one instance, the maximum amount of jaw rotation can be attained with the illustrated arrangement (each cable 2410, 2420 comprises three drive nubs). The amount each cable 2410, 2420 is required to be pulled/released can be fine tuned by gearing the system to attain the desired motion. FIG. 18 and FIG. 19 illustrate the second jaw 2340 in an unclamped position and a fully clamped position, respectively. Referring now to FIG. 20 , once the jaw 2340 is fully clamped, the firing member assembly 2570 may be actuated to cut and staple tissue.

Such a cable-driven actuation system can provide a sum, or combination, of inputs into a single output distal of the articulation axis. As a result, the torque provided by the actuation inputs may provide twice the amount of torque (i.e. from two motors) to the clamping motion as compared to a system utilizing a single actuation input. The arrangement can provide much greater torque where higher torques may be required for clamping tissue while simultaneously providing actuators for articulating the end effector and, specifically, for articulating the end effector in multiple planes about multiple articulation axes.

Actuation of the cables has been described herein as a pulling and releasing of the actuation inputs thereof. In various aspects of the present disclosure, a pulling actuation can comprise exertion of a first pulling force, and the releasing actuation can comprise exertion of a second force that is less than the first force. In certain instances, both actuation inputs can be pulled (or held taught) but to different degrees. The actuation input subjected to the greater pulling force corresponds to a cumulative pulling effect over the actuation input subjected to the lesser pulling force, which corresponds to a cumulative releasing effect.

Examples

Various aspects of the subject matter described herein are set out in the following numbered examples:

Example 1 - A robotic surgical tool configured to be attached to and detached from a surgical robot, wherein the robotic surgical tool comprise a shaft, an articulation region, and an end effector attached to the shaft by way of the articulation region, wherein the end effector is articulatable relative to the shaft by way of the articulation region. The end effector comprises a first jaw and a second jaw movable relative to the first jaw. The robotic surgical tool further comprises a cable-driven actuation system comprising a first cable, a first rotary output coupled to the first cable, wherein the first cable is configured to rotate the first rotary output, a second cable, a second rotary output coupled to the second cable, wherein the second cable is configured to rotate the second rotary output, and a driven gear configured to move the second jaw relative to the first jaw. The first rotary output and the second rotary output are configured to be rotated in opposite directions to simultaneously to drive the driven gear to move the second jaw relative to the first jaw. The first rotary output and the second rotary output are configured to be rotated in a common direction simultaneously to articulate the end effector relative to the shaft.

Example 2 - The robotic surgical tool of Example 1, wherein the articulation region defines an articulation axis, and wherein the end effector is articulatable relative to the shaft about the articulation axis.

Example 3 - The robotic surgical tool of Example 2, wherein the first rotary output and the second rotary output are configured to be rotated in opposite directions about the articulation axis by the first cable and the second cable, and wherein the first rotary output and the second rotary output are configured to be rotated in a common direction about the articulation axis by the first cable and the second cable.

Example 4 - The robotic surgical tool of Examples 1, 2, or 3, wherein the first cable comprises a first actuation input and a second actuation input, wherein the second cable comprises a third actuation input and a fourth actuation input, and wherein the first actuation input, the second actuation input, the third actuation input, and the fourth actuation input are actuatable independent of each other.

Example 5 - The robotic surgical tool of Example 4, wherein the first actuation input, the second actuation input, the third actuation input, and the fourth actuation input are each individually actuatable by a motor.

Example 6 - The robotic surgical tool of Examples 1, 2, 3, 4, or 5, further comprising a rotary firing drive actuatable by a firing-drive motor.

Example 7 - The robotic surgical tool of Examples 1, 2, 3, 4, 5, or 6, wherein the articulation region comprises a first articulation joint defining a first articulation axis, wherein the first rotary output and the second rotary output are configured to rotate about the first articulation axis, and a second articulation joint defining a second articulation axis.

Example 8 - The robotic surgical tool of Example 7, wherein the first cable and the second cable are cooperatively actuatable to articulate the end effector about the first articulation axis and to articulate the end effector about the second articulation axis.

Example 9 - The robotic surgical tool of Examples 7 or 8, wherein the first articulation joint comprises a first differential gear system and the second articulation joint comprises a second differential gear system.

Example 10 - The robotic surgical tool of Examples 1, 2, 3, 4, 5, 6, 7, 8, or 9, wherein the second jaw comprises drive teeth configured to be driven by the driven gear to move the second jaw relative to the first jaw between an unclamped configuration and a clamped configuration.

Example 11 - The robotic surgical tool of Examples 1, 2, 3, 4, 5, 6, 7, 8, 9, or 10, wherein the end effector further comprises a staple cartridge configured to staple tissue clamped between the first jaw and the second jaw.

Example 12 - A robotic surgical tool attachment configured to be attached to and detached from a surgical robot, wherein the robotic surgical tool comprises a shaft, an articulation joint, and an end effector attached to the shaft by way of the articulation joint, wherein the end effector is articulatable relative to the shaft by way of the articulation joint about an articulation axis. The end effector comprises a first jaw and a second jaw movable relative to the first jaw. The robotic surgical tool attachment further comprises a first cable and a second cable, wherein the first cable and the second cable are cooperatively actautable to articulate the end effector about the articulation axis and to move the second jaw relative to the first jaw, wherein the cooperative actuation of the first cable and the second cable to move the second jaw relative to the first jaw comprises combining antagonistic control motions of the first cable and the second cable into actuation of a single output gear.

Example 13 - The robotic surgical tool attachment of Example 12, further comprising a differential gear system configured to combine the antagonistic control motions of the first cable and the second cable into the single output gear.

Example 14 - The robotic surgical tool attachment of Examples 12 or 13, wherein the first cable comprises a first actuation input and a second actuation input, wherein the second cable comprises a third actuation input and a fourth actuation input, and wherein the first actuation input, the second actuation input, the third actuation input, and the fourth actuation input are actuatable independent of each other.

Example 15 - The robotic surgical tool attachment of Examples 12, 13, or 14, wherein the articulation joint comprises a first articulation axis about which the end effector is articulatable and a second articulation axis about which the end effector is articulatable, wherein the second articulation axis is distal to the first articulation axis.

Example 16 - The robotic surgical tool attachment of Example 15, wherein the first cable and the second cable are cooperatively actuatable to articulate the end effector about the first articulation axis in a first plane and to articulate the end effector about the second articulation axis in a second plane, wherein the first plane and the second plane are different.

Example 17 - The robotic surgical tool attachment of Examples 15 or 16, wherein the antagonistic control motions of the first cable and the second cable are combined into the single output gear distal to the first articulation axis.

Example 18 - The robotic surgical tool attachment of Examples 12, 13, 14, 15, 16, or 17, further comprising a first differential gear system and a second differential gear system distal to the first differential gear system.

Example 19 - The robotic surgical tool attachment of Examples 12, 13, 14, 15, 16, 17, or 18, further comprising a rotary firing drive traversing the articulation joint, wherein the rotary firing drive comprises a rotary firing output positioned within the end effector.

Example 20 - The robotic surgical tool attachment of Examples 12, 13, 14, 15, 16, 17, 18, or 19, wherein the end effector further comprises a staple cartridge configured to staple tissue clamped between the first jaw and the second jaw.

Example 21 - A surgical end effector assembly comprising a shaft, an end effector comprising a first jaw and a second jaw movable relative to the first jaw, and an articulation joint attaching the end effector to the shaft, wherein the articulation joint defines an articulation axis about which the end effector is articulatable relative to the shaft. The articulation joint comprises a first rotary drive member rotatable about the articulation axis and a second rotary drive member rotatable about the articulation axis, wherein the first rotary drive member and the second rotary drive member are rotatable in the same direction to articulate the end effector about the articulation axis. The surgical end effector assembly further comprises a jaw drive output cooperatively driven by the first rotary drive member and the second rotary drive member configured to clamp and unclamp tissue with the second jaw.

Example 22 - The surgical end effector assembly of Example 21, further comprising a plurality of independently-actuatable cables configured to actuate the first rotary drive member and the second rotary drive member.

Many of the surgical instrument systems described herein are motivated by an electric motor; however, the surgical instrument systems described herein can be motivated in any suitable manner. In various instances, the surgical instrument systems described herein can be motivated by a manually-operated trigger, for example. In certain instances, the motors disclosed herein may comprise a portion or portions of a robotically controlled system. Moreover, any of the end effectors and/or tool assemblies disclosed herein can be utilized with a robotic surgical instrument system. U.S. Pat. Application Serial No. 13/118,241, entitled SURGICAL STAPLING INSTRUMENTS WITH ROTATABLE STAPLE DEPLOYMENT ARRANGEMENTS, now U.S. Pat. No. 9,072,535, for example, discloses several examples of a robotic surgical instrument system in greater detail and is incorporated by reference herein in its entirety.

The surgical instrument systems described herein have been described in connection with the deployment and deformation of staples; however, the embodiments described herein are not so limited. Various embodiments are envisioned which deploy fasteners other than staples, such as clamps or tacks, for example. Moreover, various embodiments are envisioned which utilize any suitable means for sealing tissue. For instance, an end effector in accordance with various embodiments can comprise electrodes configured to heat and seal the tissue. Also, for instance, an end effector in accordance with certain embodiments can apply vibrational energy to seal the tissue.

Various embodiments described herein are described in the context of linear end effectors and/or linear fastener cartridges. Such embodiments, and the teachings thereof, can be applied to non-linear end effectors and/or non-linear fastener cartridges, such as, for example, circular and/or contoured end effectors. For example, various end effectors, including non-linear end effectors, are disclosed in U.S. Pat. Application Serial No. 13/036,647, filed Feb. 28, 2011, entitled SURGICAL STAPLING INSTRUMENT, now U.S. Pat. Application Publication No. 2011/0226837, now U.S. Pat. No. 8,561,870, which is hereby incorporated by reference in its entirety. Additionally, U.S. Pat. Application Serial No. 12/893,461, filed Sep. 29, 2012, entitled STAPLE CARTRIDGE, now U.S. Pat. Application Publication No. 2012/0074198, is hereby incorporated by reference in its entirety. U.S. Pat. Application Serial No. 12/031,873, filed Feb. 15, 2008, entitled END EFFECTORS FOR A SURGICAL CUTTING AND STAPLING INSTRUMENT, now U.S. Pat. No. 7,980,443, is also hereby incorporated by reference in its entirety. U.S. Pat. No. 8,393,514, entitled SELECTIVELY ORIENTABLE IMPLANTABLE FASTENER CARTRIDGE, which issued on Mar. 12, 2013, is also hereby incorporated by reference in its entirety.

The entire disclosures of:

-   U.S. Pat. No. 5,403,312, entitled ELECTROSURGICAL HEMOSTATIC DEVICE,     which issued on Apr. 4, 1995; -   U.S. Pat. No. 7,000,818, entitled SURGICAL STAPLING INSTRUMENT     HAVING SEPARATE DISTINCT CLOSING AND FIRING SYSTEMS, which issued on     Feb. 21, 2006; -   U.S. Pat. No. 7,422,139, entitled MOTOR-DRIVEN SURGICAL CUTTING AND     FASTENING INSTRUMENT WITH TACTILE POSITION FEEDBACK, which issued on     Sep. 9, 2008; -   U.S. Pat. No. 7,464,849, entitled ELECTRO-MECHANICAL SURGICAL     INSTRUMENT WITH CLOSURE SYSTEM AND ANVIL ALIGNMENT COMPONENTS, which     issued on Dec. 16, 2008; -   U.S. Pat. No. 7,670,334, entitled SURGICAL INSTRUMENT HAVING AN     ARTICULATING END EFFECTOR, which issued on Mar. 2, 2010; -   U.S. Pat. No. 7,753,245, entitled SURGICAL STAPLING INSTRUMENTS,     which issued on Jul. 13, 2010; -   U.S. Pat. No. 8,393,514, entitled SELECTIVELY ORIENTABLE IMPLANTABLE     FASTENER CARTRIDGE, which issued on Mar. 12, 2013; -   U.S. Pat. Application Serial No. 11/343,803, entitled SURGICAL     INSTRUMENT HAVING RECORDING CAPABILITIES, now U.S. Pat. No.     7,845,537; -   U.S. Pat. Application Serial No. 12/031,573, entitled SURGICAL     CUTTING AND FASTENING INSTRUMENT HAVING RF ELECTRODES, filed Feb.     14, 2008; -   U.S. Pat. Application Serial No. 12/031,873, entitled END EFFECTORS     FOR A SURGICAL CUTTING AND STAPLING INSTRUMENT, filed Feb. 15, 2008,     now U.S. Pat. No. 7,980,443; -   U.S. Pat. Application Serial No. 12/235,782, entitled MOTOR-DRIVEN     SURGICAL CUTTING INSTRUMENT, now U.S. Pat. No. 8,210,411; -   U.S. Pat. Application Serial No. 12/235,972, entitled MOTORIZED     SURGICAL INSTRUMENT, now U.S. Pat. No. 9,050,083. -   U.S. Pat. Application Serial No. 12/249,117, entitled POWERED     SURGICAL CUTTING AND STAPLING APPARATUS WITH MANUALLY RETRACTABLE     FIRING SYSTEM, now U.S. Pat. No. 8,608,045; U.S. Pat. Application     Serial No. 12/647,100, entitled MOTOR-DRIVEN SURGICAL CUTTING     INSTRUMENT WITH ELECTRIC ACTUATOR DIRECTIONAL CONTROL ASSEMBLY,     filed Dec. 24, 2009, now U.S. Pat. No. 8,220,688; U.S. Pat.     Application Serial No. 12/893,461, entitled STAPLE CARTRIDGE, filed     Sep. 29, 2012, now U.S. Pat. No. 8,733,613; -   U.S. Pat. Application Serial No. 13/036,647, entitled SURGICAL     STAPLING INSTRUMENT, filed Feb. 28, 2011, now U.S. Pat. No.     8,561,870; -   U.S. Pat. Application Serial No. 13/118,241, entitled SURGICAL     STAPLING INSTRUMENTS WITH ROTATABLE STAPLE DEPLOYMENT ARRANGEMENTS,     now U.S. Pat. No. 9,072,535; -   U.S. Pat. Application Serial No. 13/524,049, entitled ARTICULATABLE     SURGICAL INSTRUMENT COMPRISING A FIRING DRIVE, filed on Jun. 15,     2012, now U.S. Pat. No. 9,101,358; -   U.S. Pat. Application Serial No. 13/800,025, entitled STAPLE     CARTRIDGE TISSUE THICKNESS SENSOR SYSTEM, filed on Mar. 13, 2013,     now U.S. Pat. No. 9,345,481; -   U.S. Pat. Application Serial No. 13/800,067, entitled STAPLE     CARTRIDGE TISSUE THICKNESS SENSOR SYSTEM, filed on Mar. 13, 2013,     now U.S. Pat. Application Publication No. 2014/0263552; -   U.S. Pat. Application Publication No. 2007/0175955, entitled     SURGICAL CUTTING AND FASTENING INSTRUMENT WITH CLOSURE TRIGGER     LOCKING MECHANISM, filed Jan. 31, 2006; and -   U.S. Pat. Application Publication No. 2010/0264194, entitled     SURGICAL STAPLING INSTRUMENT WITH AN ARTICULATABLE END EFFECTOR,     filed Apr. 22, 2010, now U.S. Pat. No. 8,308,040, are hereby     incorporated by reference herein.

Although various devices have been described herein in connection with certain embodiments, modifications and variations to those embodiments may be implemented. Particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. Thus, the particular features, structures, or characteristics illustrated or described in connection with one embodiment may be combined in whole or in part, with the features, structures or characteristics of one or more other embodiments without limitation. Also, where materials are disclosed for certain components, other materials may be used. Furthermore, according to various embodiments, a single component may be replaced by multiple components, and multiple components may be replaced by a single component, to perform a given function or functions. The foregoing description and following claims are intended to cover all such modification and variations.

The devices disclosed herein can be designed to be disposed of after a single use, or they can be designed to be used multiple times. In either case, however, a device can be reconditioned for reuse after at least one use. Reconditioning can include any combination of the steps including, but not limited to, the disassembly of the device, followed by cleaning or replacement of particular pieces of the device, and subsequent reassembly of the device. In particular, a reconditioning facility and/or surgical team can disassemble a device and, after cleaning and/or replacing particular parts of the device, the device can be reassembled for subsequent use. Those skilled in the art will appreciate that reconditioning of a device can utilize a variety of techniques for disassembly, cleaning/replacement, and reassembly. Use of such techniques, and the resulting reconditioned device, are all within the scope of the present application.

The devices disclosed herein may be processed before surgery. First, a new or used instrument may be obtained and, when necessary, cleaned. The instrument may then be sterilized. In one sterilization technique, the instrument is placed in a closed and sealed container, such as a plastic or TYVEK bag. The container and instrument may then be placed in a field of radiation that can penetrate the container, such as gamma radiation, x-rays, and/or high-energy electrons. The radiation may kill bacteria on the instrument and in the container. The sterilized instrument may then be stored in the sterile container. The sealed container may keep the instrument sterile until it is opened in a medical facility. A device may also be sterilized using any other technique known in the art, including but not limited to beta radiation, gamma radiation, ethylene oxide, plasma peroxide, and/or steam.

While this invention has been described as having exemplary designs, the present invention may be further modified within the spirit and scope of the disclosure. This application is therefore intended to cover any variations, uses, or adaptations of the invention using its general principles. 

What is claimed is:
 1. A robotic surgical tool configured to be attached to and detached from a surgical robot, wherein said robotic surgical tool comprises: a shaft; an articulation region; an end effector attached to said shaft by way of said articulation region, wherein said end effector is articulatable relative to said shaft by way of said articulation region, and wherein said end effector comprises: a first jaw; and a second jaw movable relative to said first jaw, wherein said robotic surgical tool further comprises: a cable-driven actuation system, comprising: a first cable; a first rotary output coupled to said first cable, wherein said first cable is configured to rotate said first rotary output; a second cable; a second rotary output coupled to said second cable, wherein said second cable is configured to rotate said second rotary output; and a driven gear configured to move said second jaw relative to said first jaw, wherein said first rotary output and said second rotary output are configured to be rotated in opposite directions to simultaneously to drive said driven gear to move said second jaw relative to said first jaw, and wherein said first rotary output and said second rotary output are configured to be rotated in a common direction simultaneously to articulate said end effector relative to said shaft.
 2. The robotic surgical tool of claim 1, wherein said articulation region defines an articulation axis, and wherein said end effector is articulatable relative to said shaft about said articulation axis.
 3. The robotic surgical tool of claim 2, wherein said first rotary output and said second rotary output are configured to be rotated in opposite directions about said articulation axis by said first cable and said second cable, and wherein said first rotary output and said second rotary output are configured to be rotated in a common direction about said articulation axis by said first cable and said second cable.
 4. The robotic surgical tool of claim 1, wherein said first cable comprises a first actuation input and a second actuation input, wherein said second cable comprises a third actuation input and a fourth actuation input, and wherein said first actuation input, said second actuation input, said third actuation input, and said fourth actuation input are actuatable independent of each other.
 5. The robotic surgical tool of claim 4, wherein said first actuation input, said second actuation input, said third actuation input, and said fourth actuation input are each individually actuatable by a motor.
 6. The robotic surgical tool of claim 5, further comprising a rotary firing drive actuatable by a firing-drive motor.
 7. The robotic surgical tool of claim 1, wherein said articulation region comprises: a first articulation joint defining a first articulation axis, wherein the first rotary output and said second rotary output are configured to rotate about said first articulation axis; and a second articulation joint defining a second articulation axis.
 8. The robotic surgical tool of claim 7, wherein said first cable and said second cable are cooperatively actuatable to articulate said end effector about said first articulation axis and to articulate said end effector about said second articulation axis.
 9. The robotic surgical tool of claim 7, wherein said first articulation joint comprises a first differential gear system and said second articulation joint comprises a second differential gear system.
 10. The robotic surgical tool of claim 1, wherein said second jaw comprises drive teeth configured to be driven by said driven gear to move said second jaw relative to said first jaw between an unclamped configuration and a clamped configuration.
 11. The robotic surgical tool of claim 1, wherein said end effector further comprises a staple cartridge configured to staple tissue clamped between said first jaw and said second jaw.
 12. A robotic surgical tool attachment configured to be attached to and detached from a surgical robot, wherein said robotic surgical tool comprises: a shaft; an articulation joint; an end effector attached to said shaft by way of said articulation joint, wherein said end effector is articulatable relative to said shaft by way of said articulation joint about an articulation axis, and wherein said end effector comprises: a first jaw; and a second jaw movable relative to said first jaw; a first cable; and a second cable, wherein said first cable and said second cable are cooperatively actautable to articulate said end effector about said articulation axis and to move said second jaw relative to said first jaw, wherein the cooperative actuation of said first cable and said second cable to move said second jaw relative to said first jaw comprises combining antagonistic control motions of said first cable and said second cable into actuation of a single output gear.
 13. The robotic surgical tool attachment of claim 12, further comprising a differential gear system configured to combine the antagonistic control motions of said first cable and said second cable into the single output gear.
 14. The robotic surgical tool attachment of claim 12, wherein said first cable comprises a first actuation input and a second actuation input, wherein said second cable comprises a third actuation input and a fourth actuation input, and wherein said first actuation input, said second actuation input, said third actuation input, and said fourth actuation input are actuatable independent of each other.
 15. The robotic surgical tool attachment of claim 12, wherein said articulation joint comprises: a first articulation axis about which said end effector is articulatable; and a second articulation axis about which said end effector is articulatable, wherein said second articulation axis is distal to said first articulation axis.
 16. The robotic surgical tool attachment of claim 15, wherein said first cable and said second cable are cooperatively actuatable to articulate said end effector about said first articulation axis in a first plane and to articulate said end effector about said second articulation axis in a second plane, wherein said first plane and said second plane are different.
 17. The robotic surgical tool attachment of claim 15, wherein the antagonistic control motions of said first cable and said second cable are combined into the single output gear distal to the first articulation axis.
 18. The robotic surgical tool attachment of claim 12, further comprising a first differential gear system and a second differential gear system distal to said first differential gear system.
 19. The robotic surgical tool attachment of claim 12, further comprising a rotary firing drive traversing said articulation joint, wherein said rotary firing drive comprises a rotary firing output positioned within said end effector.
 20. The robotic surgical tool attachment of claim 12, wherein said end effector further comprises a staple cartridge configured to staple tissue clamped between said first jaw and said second jaw.
 21. A surgical end effector assembly, comprising: a shaft; an end effector comprising a first jaw and a second jaw movable relative to said first jaw; an articulation joint attaching said end effector to said shaft, wherein said articulation joint defines an articulation axis about which said end effector is articulatable relative to said shaft, wherein said articulation joint comprises: a first rotary drive member rotatable about said articulation axis; and a second rotary drive member rotatable about said articulation axis, wherein said first rotary drive member and said second rotary drive member are rotatable in the same direction to articulate said end effector about said articulation axis; a jaw drive output cooperatively driven by said first rotary drive member and said second rotary drive member configured to clamp and unclamp tissue with said second jaw.
 22. The surgical end effector assembly of claim 21, further comprising a plurality of independently-actuatable cables configured to actuate said first rotary drive member and said second rotary drive member. 